Make it possible to write subclasses of Git.pm
Signed-off-by: Christian Jaeger <christian@jaeger.mine.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Perl 5.8.0 ships with File::Temp 0.13, which does not have the new()
interface introduced in 0.14, as pointed out by Tom G. Christensen.
This modifies Git.pm to use the more established tempfile() interface
and updates 'git svn' to match.
Signed-off-by: Marcus Griep <marcus@griep.us>
Acked-by: Eric Wong <normalperson@yhbt.net>
Tested-by: Tom G. Christensen <tgc@statsbiblioteket.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This will ensure that the API at large is accessible to nearly
all Perl versions, while only the temp file caching API is tied to
the File::Temp and File::Spec modules being available.
Signed-off-by: Marcus Griep <marcus@griep.us>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch offers a generic interface to allow temp files to be
cached while using an instance of the 'Git' package. If many
temp files are created and destroyed during the execution of a
program, this caching mechanism can help reduce the amount of
files created and destroyed by the filesystem.
The temp_acquire method provides a weak guarantee that a temp
file will not be stolen by subsequent requests. If a file is
locked when another acquire request is made, a simple error is
thrown.
Signed-off-by: Marcus Griep <marcus@griep.us>
Acked-by: Eric Wong <normalperson@yhbt.net>
Git::DESTROY calls _close_cat_blob and _close_hash_and_insert_object,
which in turn call command_close_bidi_pipe, which calls waitpid, which
alters $?. If this happens during global destruction, it may alter the
program's exit status unexpectedly. Making $? local to the function
solves the problem.
(The problem was discovered due to a failure of test #8 in
t9106-git-svn-commit-diff-clobber.sh.)
Signed-off-by: Abhijit Menon-Sen <ams@toroid.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch also converts the good ole' git-remote.perl to use it.
It is otherwise used in the repo.or.cz machinery and I guess other
scripts might find it useful too.
Unfortunately,
git-ls-remote --heads .
is subtly different from
git-ls-remote . refs/heads/
(since the second matches anywhere in the string, not just at the
beginning) so we have to provide interface for both.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
If config is called in array context, it is supposed to return all
values set for the given option key. This works for all cases except
if there is no value set at all. In that case, it wrongly returns
(undef) instead of (). This fixes the return statement so that it
returns undef in scalar context but an empty array in array context.
Signed-off-by: Lea Wiemann <LeWiemann@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
The documentation of hash_object incorrectly states that it accepts a
file handle -- in fact it doesn't, and there is even a TODO comment
for this. This fixes the documentation.
Signed-off-by: Lea Wiemann <LeWiemann@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Recent "git-svn optimization" series introduced Git::cat_blob() subroutine
whose interface was broken in that it returned the size of the blob but
signalled an error by returning 0. You can never use an empty blob with
such an interface.
This fixes the interface to return a negative value to signal an error.
Reported by Björn Steinbrink.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
These functions are more efficient ways of executing `git hash-object -w` and
`git cat-file blob` when you are dealing with many files/objects.
Signed-off-by: Adam Roben <aroben@apple.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
command_bidi_pipe hands back the stdin and stdout file handles from the
executed command. command_close_bidi_pipe closes these handles and terminates
the process.
Signed-off-by: Adam Roben <aroben@apple.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git var doesn't require to be called in a repository anymore,
so don't require it either.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git config itself doesn't require to be called in a repository,
so don't add arbitrary restrictions.
Signed-off-by: Frank Lichtenheld <frank@lichtenheld.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This is mostly lifted from earlier series by Dan Zwell, but updated to
use "git config --get-color" and "git config --get-colorbool" to make it
simpler and more consistent with commands written in C.
A new configuration color.interactive variable is like color.diff and
color.status, and controls if "git-add -i" uses color.
A set of configuration variables, color.interactive.<slot>, are used to
define what color is used for the prompt, header, and help text.
For perl scripts, Git.pm provides $repo->get_color() method, which takes
the slot name and the default color, and returns the terminal escape
sequence to color the output text. $repo->get_colorbool() method can be
used to check if color is set to be used for a given operation.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Integer variables can have optional 'k', 'm' or 'g' suffix.
config_int() method will return simple decimal number, taking
care of those suffixes.
Signed-off-by: Jakub Narebski <jnareb@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
git-svn occasionally fails with no details as to what went wrong - this should help debug those situations.
Signed-off-by: Ask Bjørn Hansen <ask@develooper.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
For reason unknown a package in ActiveState Perl 5.8.7 must implement
READLINE method differently for scalar and array context. The code
tested to work for more sane and recent version of perl (5.8.8 shipped
with Ubuntu), so maybe it was always a requirement.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This patch renames config_boolean() to config_bool() for consistency with
the commandline interface and because it is shorter but still obvious. ;-)
It also changes the return value from some obscure string to real Perl
boolean, allowing for clean user code.
Signed-off-by: Petr Baudis <pasky@suse.cz>
which happens if you use ActiveState Perl and a
pipe workaround specially for it.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Otherwise it tries to tie it to a scalar and complains about missing
method. Dunno why, may be ActiveState brokenness again.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Acked-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Also add "git" to the pipe parameters, otherwise it does not work at all, as
no git commands are usable out of git context.
Signed-off-by: Alex Riesen <raa.lkml@gmail.com>
Signed-off-by: Junio C Hamano <junkio@cox.net>
While 'init-db' still is and probably will always remain a valid git
command for obvious backward compatibility reasons, it would be a good
idea to move shipped tools and docs to using 'init' instead.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch removes Git.xs from the repository for the time being. This
should hopefully enable Git.pm to finally make its way to master.
Git.xs is not going away forever. When the Git libification makes some
progress, it will hopefully return (but most likely as an optional
component, due to the portability woes) since the performance boosts are
really important for applications like Gitweb or Cogito. It needs to go
away now since it is not really reliable in case you use it for several
repositories in the scope of a single process, and that is not possible
to fix without some either very ugly or very intrusive core changes.
Rest in peace. (While you can.)
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Direct .xs routine. Note that it does not work 100% correctly when
you juggle multiple repository objects, but it is not that bad either.
The trouble is that we might reuse packs information for another
Git project; that is not an issue since Git depends on uniqueness
of SHA1 ids so if we have found the object somewhere else, it is
nevertheless going to be the same object. It merely makes object
existence detection through this method unreliable; it is duly noted
in the documentation.
At least that's how I see it, I hope I didn't overlook any other
potential problem. I tested it for memory leaks and it appears to be
doing ok.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This introduces a setup_git() function which is essentialy a (public)
backend for setup_git_env() which lets anyone specify custom sources
for the various paths instead of environment variables. Since the repositories
may get switched on the fly, this also updates code that caches paths to
invalidate them properly; I hope neither of those is a sweet spot.
It is used by Git.xs' xs__call_gate() to set up per-repository data
for libgit's consumption. No code actually takes advantage of it yet
but get_object() will in the next patches.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This accessor will retrieve value(s) of the given configuration variable.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
PerlIO_*() is not portable before 5.7.3, according to ppport.h, and it's
more clear what is going on when we do it in the Perl part of the Git module
anyway.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
I'm about to introduce get_object() and it will be better for consistency
if the object type always goes first. And writing 'blob' there explicitly
is not much bother.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
The code is stolen from git-annotate and completely untested since
I don't have access to any Microsoft operating system now. Someone
ActiveState-savvy should look at it anyway and try to implement
the input pipe as well, if it is possible at all; also, the implementation
seems to be horribly whitespace-unsafe.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch adds support for subdirectories inside of working copies;
you can specify them in the constructor either as the Directory
option (it will just get autodetected using rev-parse) or explicitly
using the WorkingSubdir option. This makes Git->repository() do the
exact same path setup and repository lookup as the Git porcelain
does.
This patch also introduces repo_path(), wc_path() and wc_subdir()
accessor methods and wc_chdir() mutator.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This gives the user a way to easily pass options to the command routines.
Currently only the STDERR option is implemented and can be used to adjust
what shall be done with error output of the called command (most usefully,
it can be used to silence it).
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Rename command_pipe() to command_output_pipe(), outsource
the functionality to _command_common_pipe().
Add command_input_pipe().
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Currently if an external command returns error exit code, a generic exception
is thrown and there is no chance for the caller to retrieve the command's
output.
This patch introduces a Git::Error::Command exception class which is thrown
in this case and contains both the error code and the captured command output.
You can use the new git_cmd_try statement to fatally catch the exception
while producing a user-friendly message.
It also adds command_close_pipe() for easier checking of exit status of
a command we have just a pipe handle of. It has partial forward dependency
on the next patch, but basically only in the area of documentation.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
So far, errors just killed the whole program and in case of an error
inside of libgit it would be totally uncatchable. This patch makes
Git.pm throw standard Perl exceptions instead. In the future we might
subclass Error to Git::Error or something but for now Error::Simple
is more than enough.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
Instead of explicitly using the git wrapper to call external commands,
use the execv_git_cmd() function which will directly call whatever
needs to be called. GitBin option becomes useless so drop it.
This actually means the exec_path() thing I planned to use worthless
internally, but Jakub wants it in anyway and I don't mind, so...
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch implements Git::exec_path() (as a direct XS call).
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This patch introduces a very basic and barebone Git.pm module
with a sketch of how the generic interface would look like;
most functions are missing, but this should give some good base.
I will continue expanding it.
Most desirable now is more careful error reporting, generic_in() for feeding
input to Git commands and the repository() constructor doing some poking
with git-rev-parse to get the git directory and subdirectory prefix.
Those three are basically the prerequisities for converting git-mv.
I will send them as follow-ups to this patch.
Currently Git.pm just wraps up exec()s of Git commands, but even that
is not trivial to get right and various Git perl scripts do it in
various inconsistent ways. In addition to Git.pm, there is now also
Git.xs which provides barebone Git.xs for directly interfacing with
libgit.a, and as an example providing the hash_object() function using
libgit.
This adds the Git module, integrates it to the build system and as
an example converts the git-fmt-merge-msg.perl script to it (the result
is not very impressive since its advantage is not quite apparent in this
one, but I just picked up the simplest Git user around).
Compared to v3, only very minor things were fixed in this patch (some
whitespaces, a missing export, tiny bug in git-fmt-merge-msg.perl);
at first I wanted to post them as a separate patch but since this
is still only in pu, I decided that it will be cleaner to just resend
the patch.
My current working state is available all the time at
http://pasky.or.cz/~xpasky/git-perl/Git.pm
and an irregularily updated API documentation is at
http://pasky.or.cz/~xpasky/git-perl/Git.html
Many thanks to Jakub Narebski, Junio and others for their feedback.
Signed-off-by: Petr Baudis <pasky@suse.cz>
Signed-off-by: Junio C Hamano <junkio@cox.net>
